condition	mean	min	max
3 h after light	6.6965433333333335	6.64706	6.72764
6 h after light	9.34481	7.1904	11.0316
9 h after light	12.386166666666666	10.8956	15.1481
12 h after light	14.6571075	6.75603	19.5651
3 h after dark	17.169133333333335	16.3083	18.1113
6 h after dark	11.475816666666667	9.99235	12.5399
9 h after dark	8.04489	7.33507	9.37886
12 h after dark	4.776125	4.54105	5.0112